D'Angelo "D" Barksdale is a fictional character on the HBO drama The Wire, played by Larry Gilliard Jr. D'Angelo is the nephew of Avon Barksdale and a lieutenant in his drug dealing organization which controls most of the trade in West Baltimore. The immorality and ruthlessness of the drug trade gradually wears on his conscience, bringing him into conflict with the Barksdale leadership, most notably Stringer Bell.